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Structured Query Language (SQL) is a language for querying databases. Questions should include code examples, table structure, sample data, and a tag for the DBMS implementation (e.g. MySQL, PostgreSQL, Oracle, MS SQL Server, IBM DB2, etc.) being used.

3 votes

Tools for automatic anomaly detection on a SQL table?

If you want to approach this from a SQL perspective, then broadly I would identify any classification variables that cause different behaviour. … But HDFS/Spark have some solutions that come out of the box to do log analysis. 500 million records is probably getting up into the reaches of performance problems with SQL, even with table partitioning …
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